Abstract
The demand for Global Navigation Satellite Systems (GNSSs) has increased. In this paper, a dual-band dual- rectangular-loop circular polarization metasurface antenna for GNSS receivers in the L1 (1575.42 MHz) and L2 (1227.60 MHz) bands is proposed. A loop-type Frequency Selective Surface (FSS) is adopted to lower an antenna height and enhance an antenna gain. The Voltage Standing Wave Ratio (VSWR) bandwidths (<=2) in the L1 and L2 are 4.1% and 11.0%. The Axial Ratio (AR) bandwidths (<=3 dB) in the L1 and L2 bands are 12.9% and 5.2%. The proposed antenna achieves dual-band VSWR and AR frequency characteristics with a single feed and the antenna height of 0.129 wavelengths (L2 band). The antenna is suitable for GNSS receivers due to its dual-band frequency characteristics and low-profile structure.
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